Display screen or portion thereof with icon



The FIGURE is a front view of a display screen or portion thereof with icon showing the claimed design.

The broken lines in the FIGURE show a display screen or portion thereof, and form no part of the claimed design.

The dot-dash broken lines in the FIGURE and the faded area within the dot-dash broken lines show portions of the icon that form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 